1 /*-
2 * Copyright 2018 Aniket Pandey
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * SUCH DAMAGE.
24 */
25
26 #include <atf-c.h>
27 #include <fcntl.h>
28
29 #include "utils.h"
30
31 static struct pollfd fds[1];
32 static char buff[1024];
33 static const char *path = "fileforaudit";
34 static const char *successreg = "fileforaudit.*return,success";
35 static const char *failurereg = "fileforaudit.*return,failure";
36
37
38 ATF_TC_WITH_CLEANUP(readlink_success);
ATF_TC_HEAD(readlink_success,tc)39 ATF_TC_HEAD(readlink_success, tc)
40 {
41 atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
42 "readlink(2) call");
43 }
44
ATF_TC_BODY(readlink_success,tc)45 ATF_TC_BODY(readlink_success, tc)
46 {
47 memset(buff, 0, sizeof(buff));
48 ATF_REQUIRE_EQ(0, symlink("symlink", path));
49 FILE *pipefd = setup(fds, "fr");
50 ATF_REQUIRE(readlink(path, buff, sizeof(buff)-1) != -1);
51 check_audit(fds, successreg, pipefd);
52 }
53
ATF_TC_CLEANUP(readlink_success,tc)54 ATF_TC_CLEANUP(readlink_success, tc)
55 {
56 cleanup();
57 }
58
59
60 ATF_TC_WITH_CLEANUP(readlink_failure);
ATF_TC_HEAD(readlink_failure,tc)61 ATF_TC_HEAD(readlink_failure, tc)
62 {
63 atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
64 "readlink(2) call");
65 }
66
ATF_TC_BODY(readlink_failure,tc)67 ATF_TC_BODY(readlink_failure, tc)
68 {
69 memset(buff, 0, sizeof(buff));
70 FILE *pipefd = setup(fds, "fr");
71 /* Failure reason: symbolic link does not exist */
72 ATF_REQUIRE_EQ(-1, readlink(path, buff, sizeof(buff)-1));
73 check_audit(fds, failurereg, pipefd);
74 }
75
ATF_TC_CLEANUP(readlink_failure,tc)76 ATF_TC_CLEANUP(readlink_failure, tc)
77 {
78 cleanup();
79 }
80
81
82 ATF_TC_WITH_CLEANUP(readlinkat_success);
ATF_TC_HEAD(readlinkat_success,tc)83 ATF_TC_HEAD(readlinkat_success, tc)
84 {
85 atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
86 "readlinkat(2) call");
87 }
88
ATF_TC_BODY(readlinkat_success,tc)89 ATF_TC_BODY(readlinkat_success, tc)
90 {
91 memset(buff, 0, sizeof(buff));
92 ATF_REQUIRE_EQ(0, symlink("symlink", path));
93 FILE *pipefd = setup(fds, "fr");
94 ATF_REQUIRE(readlinkat(AT_FDCWD, path, buff, sizeof(buff)-1) != -1);
95 check_audit(fds, successreg, pipefd);
96 }
97
ATF_TC_CLEANUP(readlinkat_success,tc)98 ATF_TC_CLEANUP(readlinkat_success, tc)
99 {
100 cleanup();
101 }
102
103
104 ATF_TC_WITH_CLEANUP(readlinkat_failure);
ATF_TC_HEAD(readlinkat_failure,tc)105 ATF_TC_HEAD(readlinkat_failure, tc)
106 {
107 atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
108 "readlinkat(2) call");
109 }
110
ATF_TC_BODY(readlinkat_failure,tc)111 ATF_TC_BODY(readlinkat_failure, tc)
112 {
113 memset(buff, 0, sizeof(buff));
114 FILE *pipefd = setup(fds, "fr");
115 /* Failure reason: symbolic link does not exist */
116 ATF_REQUIRE_EQ(-1, readlinkat(AT_FDCWD, path, buff, sizeof(buff)-1));
117 check_audit(fds, failurereg, pipefd);
118 }
119
ATF_TC_CLEANUP(readlinkat_failure,tc)120 ATF_TC_CLEANUP(readlinkat_failure, tc)
121 {
122 cleanup();
123 }
124
125
ATF_TP_ADD_TCS(tp)126 ATF_TP_ADD_TCS(tp)
127 {
128 ATF_TP_ADD_TC(tp, readlink_success);
129 ATF_TP_ADD_TC(tp, readlink_failure);
130 ATF_TP_ADD_TC(tp, readlinkat_success);
131 ATF_TP_ADD_TC(tp, readlinkat_failure);
132
133 return (atf_no_error());
134 }
135